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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Diodes Incorporated 2DC2412R-7

Name: 2DC2412R-7
Brand: Diodes Incorporated
SKU: 2DC2412R-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2DC2412R-7

Manufacturer:: Diodes Incorporated

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: 2DC2412R-7.pdf

Description:: TRANS NPN 50V 0.15A SOT-23-3

Quantity:: RFQ Add To RFQ list

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Inventory:6,273

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Product details

Overview

2DC2412R-7 from Diodes Incorporated is a 50V NPN small-signal surface-mount transistor in SOT23 package, rated for 150mA continuous collector current, with V_CE(sat) ≤ 400mV at 50mA/5mA drive, and DC current gain (h_FE) of 180–390 at 1mA/6V. It serves as a medium-power switching and amplification device in compact DC-DC feedback paths, LED drivers, and sensor interface stages.

For engineers reviewing the 2DC2412R-7 datasheet, 2DC2412R-7 pinout, 2DC2412R-7 application, or 2DC2412R-7 equivalent, key selection criteria include its 50V V_CEO, low saturation voltage under 50mA load, thermal resistance of 403°C/W on minimal FR4 layout, and AEC-Q101 readiness for automotive-grade reliability validation.

Technical Context

This NPN bipolar junction transistor uses epitaxial planar die construction to ensure stable h_FE across temperature (−55°C to +150°C) and consistent V_CE(sat) performance up to 150°C junction temperature. Its 80–180MHz transition frequency (f_T) supports medium-speed switching in PWM control loops and analog signal buffering.

The device operates with 7.0V maximum emitter-base breakdown voltage and exhibits <100nA cutoff leakage at rated bias conditions. Thermal design relies on its 350°C/W junction-to-leads resistance and compatibility with standard SOT23 PCB pad layouts per JEDEC MS-012.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50V - Supports operation in 24V rail systems with margin against transients.
I_C (max)	150mA - Suitable for driving small relays, logic-level MOSFET gates, or discrete amplifier stages.
V_CE(sat)	≤400mV @ 50mA/5mA - Minimizes conduction loss in high-duty-cycle switching applications.
h_FE	180–390 @ 1mA/6V - Enables predictable base drive sizing for linear and saturated-mode use.
f_T	80–180MHz - Allows stable gain in audio preamp and low-MHz oscillator circuits.
R_θJA	403°C/W - Requires minimal copper area for thermal management in space-constrained designs.
P_D	310mW - Defines safe continuous power dissipation on standard FR4 with single-sided 1oz copper.

Pinout & Package

Package: SOT23 - Surface-mount plastic case, 0.008g weight, UL 94V-0 rated, moisture sensitivity level 1, matte tin-plated leads solderable per MIL-STD-202 Method 208.

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Current sink terminal	Reference node for base-emitter bias; connects to ground or low-side return path.
2 (Base)	Control input	Receives current-limited drive to set collector current; requires series resistor for digital logic interfacing.
3 (Collector)	Current source output	Delivers switched load current; ties to positive rail or pull-up network in common-emitter configuration.

Key Features

Feature	Design Value
Low V_CE(sat)	Ensures <0.4V drop at 50mA, reducing heat generation in battery-powered switch nodes.
High BV_CEO	50V rating enables use in 24V industrial control I/O modules without external clamping.
Epitaxial planar construction	Delivers repeatable h_FE and f_T across production lots and temperature extremes.
AEC-Q101 readiness	Manufactured in IATF 16949 facilities; supports PPAP documentation for automotive subsystem qualification.
Green compound packaging	Halogen-, antimony-, and beryllium-free molding compound meets automotive and industrial RoHS 3 requirements.

Applications

Industrial Sensor Interface

Automotive LED Driver

Use Scenario: Amplifying low-level signals from RTD or thermistor bridges in PLC analog input modules.

IC Role / Device Role / Timing Role: NPN configured as common-emitter DC amplifier with fixed-gain bias network.

Use Value: Stable h_FE over −40°C to +85°C ensures consistent gain calibration without software compensation.

Use Scenario: Switching current through 12V automotive LED clusters in interior lighting control units.

IC Role / Device Role / Timing Role: Low-side switch driven by microcontroller GPIO with 5mA base current.

Use Value: V_CE(sat) ≤ 400mV limits power loss to <20mW per channel at 50mA load.

DC-DC Feedback Transistor

Compact Relay Driver

Use Scenario: Isolating optocoupler output to adjust error amplifier reference in isolated flyback converters.

IC Role / Device Role / Timing Role: Medium-speed switch translating opto-output into precise base drive for TL431-type shunt regulator.

Use Value: f_T > 80MHz ensures response time <100ns, supporting >100kHz loop bandwidths.

Use Scenario: Driving 5V/100mA coil of miniature signal relay in telecom line card protection circuits.

IC Role / Device Role / Timing Role: Saturated switch with forced β = 10 to guarantee full turn-on under worst-case V_BE.

Use Value: 150mA I_C rating provides 1.5× safety margin over relay hold current.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN small-signal transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC847BW,115	V_CEO = 45V; h_FE = 200–450; R_θJA = 375°C/W	Slightly lower voltage margin; higher gain spread; tighter thermal resistance on same board.	Preferred where 45V system margin suffices and tighter h_FE tolerance is needed.
MMBT3904LT1G	V_CEO = 40V; V_CE(sat) = 0.2V typical @ 10mA; f_T = 300MHz	Lower voltage rating; faster switching but higher saturation at >20mA loads.	Chosen when speed dominates over voltage headroom and load currents stay below 20mA.

Compared with BC847BW and MMBT3904LT1G, the 2DC2412R-7 offers superior 50V V_CEO margin for 24V industrial systems, lower thermal resistance on minimal PCB area, and tighter V_CE(sat) control above 30mA-making it optimal for robust, medium-current switching where reliability trumps raw speed.

Availability

2DC2412R-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive LED drivers, DC-DC feedback circuits, and compact relay drivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 2DC2412R-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

The 2DC2412R belongs to Diodes' general-purpose NPN transistor product line, engineered for reliable medium-power switching and amplification in cost-sensitive, space-constrained applications across industrial, automotive, and consumer markets.

FAQ

What is the maximum operating junction temperature for 2DC2412R-7?

The 2DC2412R-7 has an operating junction temperature range of −55°C to +150°C, verified per its datasheet DS31241 Rev. 4-2. This allows deployment in under-hood automotive environments and industrial enclosures without active cooling, provided PCB thermal design maintains junction temperature within this limit using its specified R_θJA values.

Is 2DC2412R-7 qualified to AEC-Q101?

While not pre-certified as AEC-Q101 in standard packaging, the 2DC2412R-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation. Diodes states that automotive-grade change control-including AEC-Q101 qualification-is available upon request for specific customer programs requiring formal automotive qualification.

Can 2DC2412R-7 replace BC846B in existing designs?

Yes, with verification: both are SOT23 NPN transistors, but 2DC2412R-7 offers higher V_CEO (50V vs. 65V for BC846B), comparable h_FE, and lower V_CE(sat) at 50mA. Layout and bias networks remain compatible, though thermal performance differs slightly due to distinct R_θJA values-designers should recheck power dissipation margins.

What does the "-7" suffix indicate in 2DC2412R-7?

The "-7" denotes tape-and-reel packaging: 3,000 units per 7-inch reel with 8mm tape width, per Diodes' ordering information table. This format is optimized for automated SMT placement and matches industry-standard feeder configurations used in high-volume electronics assembly lines.

2DC2412R-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 150 mA

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 5mA, 50mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 180 @ 1mA, 6V

Power - Max:: 300 mW

Frequency - Transition:: 180MHz

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

2DC2412R-7 FAQ

1.How can I place an order for 2DC2412R-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2DC2412R-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2DC2412R-7 reliable?

The price and inventory of 2DC2412R-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DC2412R-7 is usually 5 days.

3.What payment methods are accepted for 2DC2412R-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DC2412R-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2DC2412R-7?

2DC2412R-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2DC2412R-7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2DC2412R-7?

For technical support, including 2DC2412R-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DC2412R-7 requirements.

6.How does Aetrix verify that 2DC2412R-7 is sourced from the original manufacturer or authorized distributors?

All 2DC2412R-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2DC2412R-7 meets industry standards.

7.What is the process for return or replacement of 2DC2412R-7?

All 2DC2412R-7 units undergo pre-shipment inspection (PSI). If there is an issue with 2DC2412R-7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2DC2412R-7 part is unused and in its original packaging.

Return procedure for 2DC2412R-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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